Gas Diffusion Electrode (GDE)
GDE is used for electrochemical applications as well as for making anode and cathode of various fuel cells like PEMFC, high temperature PEM , Alkaline fuel cell and Phosphoric acid fuel cell etc.. The GDE with wide range of Pt loading is available for the customer. Our standard loading for the GDE is 0.5 mg/cm2 and 0.25 mg/cm2. It is available in both carbon cloth and carbon paper based GDE. GDE is also manufactured as per customer dimension with specific loading of catalyst. The available sizes are: 10x10cm, 20x10cm, 20x20cm.
Electrode Specifications
| Catalyst type | 40% Pt on carbon | 40% Pt on carbon |
|---|---|---|
| Pt loading | 0.5 mg/cm2 | 0.5 mg/cm2 |
| Catalyst layer | Hydrophilic | Hydrophilic |
| Gas diffusion layer | yes | yes |
| Material type | Woven Carbon Fibre Cloth | Carbon paper |
| Thickness | 350 ± 15 microns 210 ± 10 microns |
360 ± 15 microns 210 ± 10 microns |
| Basic Weight (g/m²) | 200 ± 5 | |
| Air Permeability (s) | < 55 | <45 |
| Electrical Resistivity (through plane) and In plane | < 13 mΩcm² | 9 to 10 mΩcm² |
| Substrate PTFE Treatment | Minimum 5 to 10 % | Minimum 15 to 20 % |
| Microporous Layer | Yes, on both side ( gas and catalyst side) | Yes , on catalyst side |